I don't think switching to awk will speed up things dramatically if at all, as it won't be faster than the designed-for-the-task split command. In either case you'll need to scan through the entire file to calculate its line count, and then again to do the split.
Why not optimize what you got above, reducing it to the single command
(given your OS and shell versions (which you fail to mention) offer the features used)?
Hello everyone,
I have a big folder in a linux server that contains dozen of big files (total folder size ~ 50 GB)
I have a couple of files of 2.5 GB and some others from 100 MB to 1 GB. (that said it's obvious that it's impossible having two 2.5 GB files in one dvd)
The purpose is to... (7 Replies)
Hey guys,
Sorry for the basic question but I have a lot of files that I want to separate into groups based on filenames which I can then cat together. Eg I have:
(a_b_c.txt)
WB34_2_SLA8.txt
WB34_1_SLA8.txt
WB34_1_DB10.txt
WB34_2_DB10.txt
WB34_1_SLA8.txt
WB34_2_SLA8.txt
77_1_SLA8.txt... (1 Reply)
I have number in file which contains date and serial number:
2013101000.
The last two digits are serial number (00). So maximum of serial number is 100.
After reaching 100 it becomes 00 with incrementing 10 which is day with max 31.
after reaching 31 it becomes 00 and increments 10... (31 Replies)
Hi all:
I have a 5-column tab-separated file.
The only thing that I want to do with it is to split it.
However, I want to split it with a 80/20 proportion -- randomized, if possible.
I know that something like :
awk '{print $0 ""> "file" NR}' RS='' input-file
will work, but it only... (6 Replies)
I Am connected to Whatbox.ca Seed Box Via SSH!!
i have a file named avicii.mp3. I Want to split it into two rar parts as Apart1.rar and Apart2.rar So That When i Download Both the parts to My PC And Extract Them They Come out As Whole Avicii.mp3.
There is also one more problem!! When I Rar A... (18 Replies)
Hi, I have a file like this:
aaa 123
aaa 223
aaa 225
bbb 332
bbb 423
bbb 6755
bbb 324
ccc 112
ccc 234
ccc 897
Which I need to split into several files, something like
split -l 3
but the way that the lines with the same names would only go into one file: (7 Replies)
We have a folder XYZ with large number of files (>350,000). how can i split the folder and create say 10 of them XYZ1 to XYZ10 with 35,000 files each. (doesnt matter which files go where). (12 Replies)
I need help to write shell script to copy files from one server to another server.
Source Directory UAE(inside i have another folder Misc with files inside UAE folder).I have to copy this to another server UAE folder( Files should be copied to UAE folder and Misc files should be copied in target... (3 Replies)
Hi Team,
I am new to shell script and there is a requirement where files should be moved from Subfolder to parent folder.
Eg:
parent folder --> /Interface/data/test/IN
Sub folder -->/Interface/data/test/IN/Invoice20180607233338
Subfolder will be always with timestamp... (6 Replies)
Discussion started by: srivarun15
6 Replies
LEARN ABOUT NETBSD
split
SPLIT(1) BSD General Commands Manual SPLIT(1)NAME
split -- split a file into pieces
SYNOPSIS
split [-a suffix_length] [-b byte_count[k|m] | -l line_count -n chunk_count] [file [name]]
DESCRIPTION
The split utility reads the given file and breaks it up into files of 1000 lines each. If file is a single dash or absent, split reads from
the standard input. file itself is not altered.
The options are as follows:
-a Use suffix_length letters to form the suffix of the file name.
-b Create smaller files byte_count bytes in length. If 'k' is appended to the number, the file is split into byte_count kilobyte
pieces. If 'm' is appended to the number, the file is split into byte_count megabyte pieces.
-l Create smaller files line_count lines in length.
-n Split file into chunk_count smaller files.
If additional arguments are specified, the first is used as the name of the input file which is to be split. If a second additional argument
is specified, it is used as a prefix for the names of the files into which the file is split. In this case, each file into which the file is
split is named by the prefix followed by a lexically ordered suffix using suffix_length characters in the range ``a-z''. If -a is not speci-
fied, two letters are used as the suffix.
If the name argument is not specified, 'x' is used.
STANDARDS
The split utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
HISTORY
A split command appeared in Version 6 AT&T UNIX.
The -a option was introduced in NetBSD 2.0. Before that, if name was not specified, split would vary the first letter of the filename to
increase the number of possible output files. The -a option makes this unnecessary.
BSD May 28, 2007 BSD